APA (7th ed.) Citation

Robson, M. (1993). Problem-solving in groups (2., rev. ed.). Gower u.a.

Chicago Style (17th ed.) Citation

Robson, Mike. Problem-solving in Groups. 2., rev. ed. Aldershot u.a: Gower u.a, 1993.

MLA (9th ed.) Citation

Robson, Mike. Problem-solving in Groups. 2., rev. ed. Gower u.a, 1993.